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| |
| #ifndef QCOLUMNVIEW_P_H |
| #define QCOLUMNVIEW_P_H |
| |
| // |
| // W A R N I N G |
| // ------------- |
| // |
| // This file is not part of the Qt API. It exists for the convenience |
| // of other Qt classes. This header file may change from version to |
| // version without notice, or even be removed. |
| // |
| // We mean it. |
| // |
| |
| #include <QtWidgets/private/qtwidgetsglobal_p.h> |
| #include "qcolumnview.h" |
| |
| #include <private/qabstractitemview_p.h> |
| |
| #include <QtCore/qabstractitemmodel.h> |
| #if QT_CONFIG(animation) |
| #include <QtCore/qpropertyanimation.h> |
| #endif |
| #include <QtWidgets/qabstractitemdelegate.h> |
| #include <QtWidgets/qabstractitemview.h> |
| #include <QtWidgets/qitemdelegate.h> |
| #include <qlistview.h> |
| #include <qevent.h> |
| #include <qscrollbar.h> |
| |
| QT_REQUIRE_CONFIG(columnview); |
| |
| QT_BEGIN_NAMESPACE |
| |
| class QColumnViewPreviewColumn : public QAbstractItemView { |
| |
| public: |
| explicit QColumnViewPreviewColumn(QWidget *parent) : QAbstractItemView(parent), previewWidget(nullptr) { |
| } |
| |
| void setPreviewWidget(QWidget *widget) { |
| previewWidget = widget; |
| setMinimumWidth(previewWidget->minimumWidth()); |
| } |
| |
| void resizeEvent(QResizeEvent * event) override{ |
| if (!previewWidget) |
| return; |
| previewWidget->resize( |
| qMax(previewWidget->minimumWidth(), event->size().width()), |
| previewWidget->height()); |
| QSize p = viewport()->size(); |
| QSize v = previewWidget->size(); |
| horizontalScrollBar()->setRange(0, v.width() - p.width()); |
| horizontalScrollBar()->setPageStep(p.width()); |
| verticalScrollBar()->setRange(0, v.height() - p.height()); |
| verticalScrollBar()->setPageStep(p.height()); |
| |
| QAbstractScrollArea::resizeEvent(event); |
| } |
| |
| void scrollContentsBy(int dx, int dy) override |
| { |
| if (!previewWidget) |
| return; |
| scrollDirtyRegion(dx, dy); |
| viewport()->scroll(dx, dy); |
| |
| QAbstractItemView::scrollContentsBy(dx, dy); |
| } |
| |
| QRect visualRect(const QModelIndex &) const override |
| { |
| return QRect(); |
| } |
| void scrollTo(const QModelIndex &, ScrollHint) override |
| { |
| } |
| QModelIndex indexAt(const QPoint &) const override |
| { |
| return QModelIndex(); |
| } |
| QModelIndex moveCursor(CursorAction, Qt::KeyboardModifiers) override |
| { |
| return QModelIndex(); |
| } |
| int horizontalOffset () const override { |
| return 0; |
| } |
| int verticalOffset () const override { |
| return 0; |
| } |
| QRegion visualRegionForSelection(const QItemSelection &) const override |
| { |
| return QRegion(); |
| } |
| bool isIndexHidden(const QModelIndex &) const override |
| { |
| return false; |
| } |
| void setSelection(const QRect &, QItemSelectionModel::SelectionFlags) override |
| { |
| } |
| private: |
| QWidget *previewWidget; |
| }; |
| |
| class Q_AUTOTEST_EXPORT QColumnViewPrivate : public QAbstractItemViewPrivate |
| { |
| Q_DECLARE_PUBLIC(QColumnView) |
| |
| public: |
| QColumnViewPrivate(); |
| ~QColumnViewPrivate(); |
| void initialize(); |
| |
| QAbstractItemView *createColumn(const QModelIndex &index, bool show); |
| |
| void updateScrollbars(); |
| void closeColumns(const QModelIndex &parent = QModelIndex(), bool build = false); |
| void doLayout(); |
| void setPreviewWidget(QWidget *widget); |
| void checkColumnCreation(const QModelIndex &parent); |
| |
| |
| void _q_gripMoved(int offset); |
| void _q_changeCurrentColumn(); |
| void _q_clicked(const QModelIndex &index); |
| void _q_columnsInserted(const QModelIndex &parent, int start, int end) override; |
| |
| QList<QAbstractItemView*> columns; |
| QVector<int> columnSizes; // used during init and corner moving |
| bool showResizeGrips; |
| int offset; |
| #if QT_CONFIG(animation) |
| QPropertyAnimation currentAnimation; |
| #endif |
| QWidget *previewWidget; |
| QAbstractItemView *previewColumn; |
| }; |
| |
| /*! |
| * This is a delegate that will paint the triangle |
| */ |
| // ### Qt6: QStyledItemDelegate |
| class QColumnViewDelegate : public QItemDelegate |
| { |
| |
| public: |
| explicit QColumnViewDelegate(QObject *parent = nullptr) : QItemDelegate(parent) {} |
| ~QColumnViewDelegate() {} |
| |
| void paint(QPainter *painter, |
| const QStyleOptionViewItem &option, |
| const QModelIndex &index) const override; |
| }; |
| |
| QT_END_NAMESPACE |
| |
| #endif //QCOLUMNVIEW_P_H |